Stamp assembly



FIG. 1 is a perspective view of a stamp assembly, showing my new design;

FIG. 2 is a front elevational view thereof, wherein the rear elevational view is the same as that of the front elevational view;

FIG. 3 is a right elevational view thereof, which is the same as that of the left elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is another perspective view thereof showing the design in an exploded condition. 

The ornamental design for a stamp assembly, as shown. 